Who Made More than 1000 Inventions?

Thomas Alva Edison (1847-1931) made almost 1,300 inventions in his lifetime. He lived in United States and when he was only ten years old, he set up his own chemical laboratory in his house. His most famous invention was the phonograph in 1877, which was a type of record player that used wax cylinders instead of discs. His first recording was of himself reciting the rhyme, 'Mary had a little lamb'. In 1879, he demonstrated the first successful electric bulb. He discovered that electricity would flow from the bulb's glowing filament on to a metal plate inside the bulb. This is known as 'Edison's effect'. This was later used by others to make valves for the first radio sets. Most of the Edison's inventions were modifications on already existing ones. He improved Graham Bell's telephone and enabled conversadons to be held over distances of 160 km or more, instead of just a few metres. Edison was one of the several people to invent kinetoscope, which was the first machine to produce moving pictures.